Pennzoil 5-Quart Full Synthetic Oil $12.66 after rebate!!
Walmart offers Pennzoil Platinum 5-Quart Full Synthetic Oil in in 10w30 (pictured), 5w20, or 5w30 for $22.66 each. This $10 mail-in rebate cuts it to $12.66. Choose free in-store pickup via Site-to-Store to dodge the $4.97 shipping charge. That's $2.53/quart, $2 under our October mention and the lowest price we could find by $17. Rebate ends November 30.